After the princess was killed in a car crash in Paris in August 1997, Jephson penned a book about Diana, which became a New York Times best seller.

But members of the royal family were not pleased.

A statement to Britain's Sunday Times before the release of "Shadows of a Princess" read:

"Her Majesty and His Royal Highness do not want a book of this kind to be published, a view which was conveyed firmly to Mr. Jephson in February, 1998.

"The Queen and the Prince of Wales deeply deplore Mr. Jephson's decision to proceed with the publication of his book."

But Jephson insisted that his book was intended to protect Diana's memory.

"During her lifetime, I was discreet and utterly loyal," he said. "Since her death I have been dismayed by the indiscriminate comment she has received, much of it inaccurate, some of it apparently intended to diminish her memory."

Jephson's second book, "Portraits of a Princess: Travels with Diana," details time he spent with Diana during her trips overseas and includes never-before-seen photos.

Jephson's work in television includes a two-part series for Britain's Channel 4 called "Charles: The Battle with Diana."